Seat height - road v. aero

So this seems like this question should answer itself, but I keep going back and forth on it. I have a road bike, and last year I clipped on some aero bars, lowered the stem, picked up a thomson setback (which I flipped around), and started working on riding in a more aero position.

The aero cockpit seems to work fine for me reach-wise, but for some reason I keep raising the seat up - I have no idea why, it just feels right. When I have it set up for road riding, I have the height adjusted pretty much along the lines of the Lemond approach - inseam x .883 - , but it was much higher when I was in the aero position (didn’t measure it, though). Was this the right thing to do? Is it normal to move the seat higher when you are in an aero position, or perhaps it is that my bars were too high and I was raising the seat more to compensate.

Appreciate any feedback you may have.

John

Hmmm, remember the saddle is swinging through an “arc” as it moves forward to maintian the same straight line distance. Other than that there really shouldn’t be a difference between the two “heights” other than angle. Maybe your initial (road) position was a bit too low.

JohnA, Are you measuring saddle height at the same point on the saddle itself, say mid-saddle? If not that may produce the “apparent” variability. You can’t just continue to measure along the seatpost-line if you move the saddle fore/aft.

Just a shot in the dark…